uexam v3.2.0 released, online exam system for learning thinking

Xuezhisi online examination system is a java + vue examination system with front and back ends separated. The main advantages are simple and quick development and deployment, friendly interface design, and clear code structure. Support web terminal and WeChat applet, can cover PC and mobile phone and other devices. Support multiple deployment methods: integrated deployment, front-end and back-end separate deployment, docker deployment.

The contents of this update are as follows:
1. Remove the lombok plug-in from the project
2. Fix some functional bugs
3. The copyright is revised in 2021
4. The front-end project components are upgraded: axios: ^0.19.0, core-js: ^3.8.3 , Element-ui: ^2.15.0, js-cookie: 2.2.0, normalize.css: 8.0.1, nprogress: 0.2.0, vue: ^2.6.10, vue-count-to: ^1.0.13, vue-router: ^3.4.9, vuex: ^3.6.0